uxcell 6 Pcs HSS Steel Saw Cutting Disc Wheel Mini Drills Cut Off Set for Cutting Product Name: Cutting Wheel Disc; Package Content: 5 x Cutting Wheel Discs, 1 x Mandrel; Weight: 30g Material: HSS,Metal; Color: Silver Tone; Wheel Outer Diameter: 22mm/7/8", 25mm/1", 32mm/1-1/4", 35mm/1-1/2",44mm/1-3/4" Wheel Thickness: 0.4mm0.016", 0.5mm/0.02", 0.6mm/0.024", 0.7mm/0.028", 0.8mm/0.03"; Hole Diameter: 6.35mm/1/4" Speed: 20000RPM/min; Shank Diameter: 3.2mm/1/8" Mandrel Total Size: 12 x 52mm/0.5" x 2"(D*L); Fit for: Wood or Plastic Cutting